Robert Allan JamesandClaude Sonnet 5
378d688898
Punch list §25 item 3.3 complete. StadiumBehaviour (stadium.h) enumerates exactly the four tags §18.3 already names -- MIGRATE, DELIVER, EXPIRE, COOL -- mapped from §17.1's patron table: blocks->MIGRATE, messages->DELIVER, ACLs->EXPIRE, words and VMs both->COOL. Nothing invented; the tag set and mapping were already in the document. stadium_dispatch(cell_index, behaviour) dispatches on the tag only, never asks what kind of patron departed. Handlers are stubs -- the real actions belong to subsystems not yet migrated onto the Stadium (Phase 4). Nothing calls stadium_dispatch() yet; item 3.5 is its first consumer. The switch is exhaustive with no default case, making §13's "closed enumeration, fixed at build time" a compiler-enforced property under this project's -Wall -Werror rather than just prose. Verified live: temporarily deleted the COOL case, rebuild failed with error: enumeration value 'STADIUM_BEHAVIOUR_COOL' not handled in switch [-Werror=switch], restored it, confirmed clean again. The header's behaviour field stays uint8_t, not the enum type itself, since C does not guarantee an enum's underlying type and that field's offset is load-bearing for item 3.1's validated 64-byte layout. Verified: three-architecture boot (amd64, aarch64, riscv64), all reaching ok> with identical dict_hash=0x3d4e1daf289da94f matching the item-3.2 baseline. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
capsules/
FORTH personality files loaded by the VM at boot. A capsule is an immutable, content-addressed payload; its XXHash64 hash is its identity. Any mutation changes the hash and the birth protocol rejects the image.
Key files
| File | Type | Purpose |
|---|---|---|
init.4th |
(m) MAMA_INIT |
Default Mama VM personality — loaded at LBN 2048 |
ACL.4th |
user | Word-level ACL system; self-activating at boot |
zuse.4th |
user | Bootstrap superuser; loaded by ACL.4th |
doe.4th |
user | DoE workload words (EXEC-DOE) — opt-in |
init-0.4th … init-9.4th |
(p) |
Numbered personality variants |
init-l8-*.4th |
(p) |
L8 Jacquard mode variants (stable/volatile/diverse/temporal/transition/omni) |
hermes/init.4th |
(p) |
Hermes baby VM personality |
artemis/init.4th |
(p) |
Artemis baby VM personality |
Block namespace
Block ranges are shared across all loaded capsules — collisions cause silent word-definition overwrites.
| Range | Owner |
|---|---|
| 2048–2099 | init.4th |
| 2100–2199 | doe.4th |
| 3000–3999 | workload capsules |
| 4000+ | user-defined (ACL.4th, zuse.4th, …) |
Each block is limited to 1024 bytes. Verify with wc -c before committing.
See also
experiments/bare_metal/README.md— DoE protocols and block namespace rulesdocs/03-architecture/word-acl/DESIGN.md— ACL system designtools/mkcapsule.c— assembles capsules intocapsule_generated.c- Project root